<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" :inline="true" v-show="showSearch" label-width="98px">
      <el-form-item label="限制使用等级" prop="limitLevel">
        <el-select style="width: 260px" v-model="queryParams.limitLevel" placeholder="请选择限制使用的纪念馆最低等级" clearable
                   size="small">
          <el-option
              v-for="dict in dict.type.memorial_hall_level"
              :key="dict.value"
              :label="dict.label"
              :value="dict.value"
          />
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
            type="primary"
            plain
            icon="el-icon-plus"
            size="mini"
            @click="handleAdd"
            v-hasPermi="['service:music:add']"
        >新增
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
            type="success"
            plain
            icon="el-icon-edit"
            size="mini"
            :disabled="single"
            @click="handleUpdate"
            v-hasPermi="['service:music:edit']"
        >修改
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
            type="danger"
            plain
            icon="el-icon-delete"
            size="mini"
            :disabled="multiple"
            @click="handleDelete"
            v-hasPermi="['service:music:remove']"
        >删除
        </el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="musicList" @selection-change="handleSelectionChange">
      <el-table-column :selectable="checkSelectable" type="selection" width="55" align="center"/>
      <el-table-column label="编号" align="center" type="index"/>
      <el-table-column label="音乐名称" align="center" prop="name"/>
      <el-table-column label="限制使用等级" align="center">
        <template slot-scope="scope">
          <dict-tag :options="dict.type.memorial_hall_level" :value="scope.row.limitLevel"/>
        </template>
      </el-table-column>
      <el-table-column label="音乐" align="center" width="450">
        <template slot-scope="scope">
          <audio-player :the-control-list="controlParam"
                        :theUrl="baseMusicUrl + musicList[scope.$index].url"></audio-player>
        </template>
      </el-table-column>
      <el-table-column label="创建时间" align="center" prop="createTime"/>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
              size="mini"
              type="text"
              icon="el-icon-edit"
              @click="handleUpdate(scope.row)"
              v-hasPermi="['service:music:edit']"
          >修改
          </el-button>
          <el-button
              v-if="checkSelectable(scope.row)"
              size="mini"
              type="text"
              icon="el-icon-delete"
              @click="handleDelete(scope.row)"
              v-hasPermi="['service:music:remove']"
          >删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
        v-show="total>0"
        :total="total"
        :page.sync="queryParams.pageNum"
        :limit.sync="queryParams.pageSize"
        @pagination="getList"
    />

    <!-- 添加或修改背景音乐对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="600px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="120px">
        <el-form-item label="音乐名称" prop="name">
          <el-input v-model="form.name" :disabled="!checkSelectable(form)" placeholder="请输入音乐名称" maxlength="30"/>
        </el-form-item>
        <el-form-item label="限制使用等级" prop="limitLevel">
          <el-select style="width: 100%" :disabled="!checkSelectable(form)" v-model="form.limitLevel" placeholder="请选择限制使用的纪念馆最低等级" clearable>
            <el-option
                v-for="dict in dict.type.memorial_hall_level"
                :key="dict.value"
                :label="dict.label"
                :value="dict.value"
            />
          </el-select>
        </el-form-item>
        <el-form-item label="上传音乐文件" prop="url">
          <file-upload v-model="form.url" :limit="1" :file-size="10" :file-type="['mp3']"
                       :upload-data="{allowedExtension:['mp3']}"/>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
  import {listMusic, getMusic, delMusic, addMusic, updateMusic} from "@/api/service/music";
  import FileUpload from '@/components/FileUpload';
  import AudioPlayer from '@/components/AudioPlayer';

  export default {
    name: "Music",
    dicts: ['memorial_hall_level'],
    components: {
      FileUpload,
      AudioPlayer
    },
    data() {
      return {
        baseMusicUrl: process.env.VUE_APP_BASE_API,
        // 遮罩层
        loading: true,
        // 选中数组
        ids: [],
        // 非单个禁用
        single: true,
        // 非多个禁用
        multiple: true,
        // 显示搜索条件
        showSearch: true,
        // 总条数
        total: 0,
        // 背景音乐表格数据
        musicList: [],
        // 弹出层标题
        title: "",
        // 是否显示弹出层
        open: false,
        // 查询参数
        queryParams: {
          pageNum: 1,
          pageSize: 10,
          name: null,
          url: null,
          limitLevel: null,
        },
        // 表单参数
        form: {},
        // 表单校验
        rules: {
          name: [
            {required: true, message: "音乐名称不能为空", trigger: "blur"}
          ],
          url: [
            {required: true, message: "请上传音乐文件", trigger: "blur"}
          ],
          limitLevel: [
            {required: true, message: "请选择限制使用的纪念馆最低等级", trigger: "blur"}
          ],
        },
        controlParam: 'noMuted noVolume onlyOnePlaying noSpeed'
      };
    },
    created() {
      this.getList();
    },
    methods: {
      checkSelectable(row) {
        return row.isDefault !== 1
      },
      /** 查询背景音乐列表 */
      getList() {
        this.loading = true;
        listMusic(this.queryParams).then(response => {
          this.musicList = response.rows;
          this.total = response.total;
          this.loading = false;
        });
      },
      // 取消按钮
      cancel() {
        this.open = false;
        this.reset();
      },
      // 表单重置
      reset() {
        this.form = {
          musicId: null,
          name: null,
          url: null,
          limitLevel: null,
          createBy: null,
          createTime: null,
          updateBy: null,
          updateTime: null
        };
        this.resetForm("form");
      },
      /** 搜索按钮操作 */
      handleQuery() {
        this.queryParams.pageNum = 1;
        this.getList();
      },
      /** 重置按钮操作 */
      resetQuery() {
        this.resetForm("queryForm");
        this.handleQuery();
      },
      // 多选框选中数据
      handleSelectionChange(selection) {
        this.ids = selection.map(item => item.musicId)
        this.single = selection.length !== 1
        this.multiple = !selection.length
      },
      /** 新增按钮操作 */
      handleAdd() {
        this.reset();
        this.open = true;
        this.title = "添加背景音乐";
      },
      /** 修改按钮操作 */
      handleUpdate(row) {
        this.reset();
        const id = row.musicId || this.ids
        getMusic(id).then(response => {
          this.form = response.data;
          this.form.limitLevel = this.form.limitLevel.toString();
          this.open = true;
          this.title = "修改背景音乐";
        });
      },
      /** 提交按钮 */
      submitForm() {
        this.$refs["form"].validate(valid => {
          if (valid) {
            if (this.form.musicId != null) {
              updateMusic(this.form).then(response => {
                this.$modal.msgSuccess("修改成功");
                this.open = false;
                this.getList();
              });
            } else {
              addMusic(this.form).then(response => {
                this.$modal.msgSuccess("新增成功");
                this.open = false;
                this.getList();
              });
            }
          }
        });
      },
      /** 删除按钮操作 */
      handleDelete(row) {
        const ids = row.musicId || this.ids;
        this.$modal.confirm('是否确认删除选中的背景音乐？').then(function () {
          return delMusic(ids);
        }).then(() => {
          this.getList();
          this.$modal.msgSuccess("删除成功");
        }).catch(() => {
        });
      }
    }
  };
</script>
